Draper Laboratory Profiling Current and CTD Meter (PCM),

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Abstract:

The design of the Draper Laboratory Profiling Current and CTD Meter PCM is described. This self-propelled instrument processes and records signals from its sensors in a programmed depth-time sequence. Its most noteworthy features are an energy-efficient buoyancy control system for sustaining cyclic vertical motion throughout long-term immersion accurate measurement of current, temperature, and conductivity in the surface wave field and a microprocessor-centered programmable electronic system for sophisticated control of operational functions. The prototype system is configured to operate unattended on a mooring line while drawing its power solely from internal batteries. It is presently being evaluated in near-surface ocean pilot experiments.

Author(s):
Dahlen, John M.
Author Organization(s):
CHARLES STARK DRAPER LAB INC CAMBRIDGE MA
Supplementary Note:
This article is from 'Near Surface Ocean Experimental Technology Workshop Proceedings Held at Naval Ocean Research and Development Activity, NSTL Station, Mississippi on 6-8 November 1979,' AD-A126 582.
Pagination:
0012

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Subject Terms
Communities of Interest:
Materials and Manufacturing Processes
Descriptor(s):
*Oceanographic equipment, *Measuring instruments, *Profiles, *Ocean currents, *Data acquisition, Experimental design, Prototypes, Self propelled, Buoyancy, Control systems, Vertical orientation, Microprocessors, Computer programming, Long range(Time), Immersion, Temperature, Conductivity, Surface waves, Measurement
Keyword(s):
Component reports, PCM(Profiling Current Meter)
Report Date:
1980 Feb 01